https://library.noctrl.edu/archives...l_at_miltary_training_centers_during_wwII.pdf
Football at these institutions was used for a number of reasons as outlined by the creators of the V-5 program.
The program had backing in very high places such as from the Secretary of Navy Frank Knox. Knox believed strongly in the use of football as a training tool for combat. He was one of the biggest advocates of the program and he
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was also in the best position to see that the program continued on during the war years. Knox is quoted in the Great Lake’s Bulletin as saying, “[t]his is a war where you kill or get killed! And I don’t know anything that better prepares a man for bodily contact, including war, than the kind of training we get on the football field.”13 As one can see from these strong words, Knox believed deeply in the advantages of using football as a training technique. He goes on to say that “[there is] a definite relationship between the spirit which makes great football players and the spirit that makes great soldiers or sailors.”14
OK? so people that don't think football is respected and treated as a sport that trains men for warfare, perhaps you'd rather the Nazi's won world war 2.